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Performs mathematical calculations and conversions. Use when user asks to "calculate", "compute", "what is the result of", "convert units", or needs math help.
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| name | calculator-helper |
| description | Performs mathematical calculations and conversions. Use when user asks to "calculate", "compute", "what is the result of", "convert units", or needs math help. |
| allowed-tools | ["Read"] |
Automatically performs mathematical calculations, unit conversions, and numeric computations.
This skill activates when the user needs mathematical help:
Determine what kind of calculation is needed:
Basic Arithmetic:
150 + 75 = 225
1000 - 234 = 766
45 * 12 = 540
100 / 4 = 25
Percentages:
25% of 200 = 50
200 increased by 15% = 230
Change from 50 to 75 = 50% increase
15 is what % of 60? = 25%
Unit Conversions:
Common conversions:
- 1 mile = 1.60934 kilometers
- 1 pound = 0.453592 kilograms
- 1 inch = 2.54 centimeters
- Celsius to Fahrenheit: (C × 9/5) + 32
- Fahrenheit to Celsius: (F - 32) × 5/9
Financial Calculations:
Simple Interest: Principal × Rate × Time
Compound Interest: Principal × (1 + Rate)^Time
Percentage Profit: (Profit / Cost) × 100
Always show:
User: "What is 15% of 850?"
Response:
Calculating 15% of 850:
Method: (15/100) × 850
= 0.15 × 850
= 127.50
Answer: 127.50
User: "Convert 75 degrees Fahrenheit to Celsius"
Response:
Converting 75°F to Celsius:
Formula: (F - 32) × 5/9
= (75 - 32) × 5/9
= 43 × 5/9
= 215/9
= 23.89°C
Answer: 75°F = 23.89°C (approximately 24°C)
User: "If I invest $5000 at 6% compound interest for 3 years, how much will I have?"
Response:
Calculating compound interest:
Given:
- Principal (P) = $5,000
- Annual Rate (r) = 6% = 0.06
- Time (t) = 3 years
Formula: A = P(1 + r)^t
= 5000(1 + 0.06)^3
= 5000(1.06)^3
= 5000 × 1.191016
= $5,955.08
Answer: After 3 years, you'll have $5,955.08
Interest earned: $955.08
User: "My recipe serves 4 but I need it for 7 people. It calls for 2.5 cups of flour. How much do I need?"
Response:
Scaling recipe from 4 to 7 people:
Scale factor: 7 ÷ 4 = 1.75
Original flour: 2.5 cups
Scaled flour: 2.5 × 1.75 = 4.375 cups
Answer: You need 4.375 cups of flour (approximately 4⅜ cups)
Tip: This is closest to 4.5 cups (4½ cups) for easier measuring.
User: "Sales went from 1,200 to 1,650. What's the percentage increase?"
Response:
Calculating percentage change:
Original: 1,200
New: 1,650
Change: 1,650 - 1,200 = 450
Formula: (Change / Original) × 100
= (450 / 1,200) × 100
= 0.375 × 100
= 37.5%
Answer: 37.5% increase in sales